发明名称 |
Process for preparing optically active 3-hydroxy furan compounds |
摘要 |
<p>A process for preparing optically active 3-hydroxy- gamma -butyrolactone or optically active 3-hydroxytetrahydrofuran through a short route and by using an easily available and inexpensive starting material and an inexpensive reagent easy to handle is disclosed. The process comprises cyclizing an optically active compound represented by formula (II): <CHEM> wherein Q represents an alkoxycarbonyl group having 1 to 4 carbon atoms or a hydroxymethyl group; X represents a halogen atom; and the asterisk * means an asymmetric carbon atom, under an acidic condition.</p> |
申请公布号 |
EP0761663(A1) |
申请公布日期 |
1997.03.12 |
申请号 |
EP19960306436 |
申请日期 |
1996.09.05 |
申请人 |
TAKASAGO INTERNATIONAL CORPORATION |
发明人 |
YUASA, YOSHIFUMI;KONNO, MASAO;SANO, NOBORU |
分类号 |
C07B53/00;C07D307/20;C07D307/33;(IPC1-7):C07D307/32 |
主分类号 |
C07B53/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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